5916921 has 4 divisors (see below), whose sum is σ = 7889232. Its totient is φ = 3944612.

The previous prime is 5916919. The next prime is 5916931. The reversal of 5916921 is 1296195.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5916921 - 2¹ = 5916919 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (5916931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 986151 + ... + 986156.

It is an arithmetic number, because the mean of its divisors is an integer number (1972308).

Almost surely, 2^5916921 is an apocalyptic number.

It is an amenable number.

5916921 is a deficient number, since it is larger than the sum of its proper divisors (1972311).

5916921 is a wasteful number, since it uses less digits than its factorization.

5916921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972310.

The product of its digits is 4860, while the sum is 33.

The square root of 5916921 is about 2432.4721992245. The cubic root of 5916921 is about 180.8694662354.

The spelling of 5916921 in words is "five million, nine hundred sixteen thousand, nine hundred twenty-one".